Here's a general outline. Consult a 1989 Corvette repair manual for detailed instructions, diagrams, and torque specifications specific to your vehicle. These instructions are a guideline only and may not cover every detail or variation.
Tools you'll likely need:
* Socket set (metric)
* Wrenches (metric)
* Screwdrivers (Phillips and flathead)
* Fuel pump pliers (or a similar tool to clamp the fuel lines)
* Fuel line disconnect tools (if needed)
* Jack and jack stands
* Wheel chocks
* Safety glasses
* Gloves
* Rags
* New fuel pump (ensure it's the correct one for your model)
* Fuel filter (recommended to replace while you're there)
* Torque wrench
Procedure:
1. Safety First: Disconnect the negative battery terminal. Allow the fuel system to depressurize. This might involve starting the car and letting it run until it stalls, several times, to deplete the pressure in the lines. Be absolutely certain the fuel system is depressurized before proceeding.
2. Access the Fuel Pump: The fuel pump is located in the fuel tank. You'll likely need to drop the fuel tank. This typically involves:
* Raising the car: Securely lift the car using a jack and jack stands. Never work under a car supported only by a jack.
* Removing the fuel tank straps: Locate and loosen/remove the straps holding the fuel tank in place. This will likely require sockets and wrenches. Take note of the location and order of bolts to ensure proper reinstallation.
* Disconnecting fuel lines: Carefully disconnect the fuel lines using fuel line disconnect tools or fuel pump pliers. Be ready for some fuel spillage, use rags to absorb any leaks. Clearly mark or photograph the fuel lines before disconnecting to avoid confusion during reassembly.
* Disconnecting the fuel pump electrical connector: Unplug the electrical connector from the fuel pump.
* Lowering the fuel tank: Carefully lower the fuel tank. You may need assistance to support its weight and prevent damage.
3. Accessing the Fuel Pump: Once the tank is lowered (or partially lowered, depending on tank design), you will need to access the fuel pump assembly. This may involve removing access panels or other components on the top of the tank.
4. Removing the Old Fuel Pump: Once you have access, you'll need to remove the fuel pump assembly from the tank. This often involves removing retaining clips or bolts.
5. Installing the New Fuel Pump: Install the new fuel pump assembly, ensuring it's seated correctly.
6. Reassembly: Carefully reassemble everything in reverse order of disassembly. Double-check all connections, ensuring the fuel lines are securely attached and the electrical connector is properly plugged in.
7. Raising the Fuel Tank: Carefully raise the fuel tank back into its position and reattach the straps.
8. Reconnect Fuel Lines: Carefully reconnect the fuel lines.
9. Reconnecting Electrical Connectors: Reconnect the fuel pump electrical connector.
10. Reconnect the Battery: Reconnect the negative battery terminal.
11. Testing: Start the car and check for leaks around the fuel lines and fuel tank. Listen for any unusual noises from the fuel pump.
Important Considerations:
* Fuel Safety: Work in a well-ventilated area. Gasoline is highly flammable and its vapors can be explosive. Avoid sparks or open flames.
* Fuel System Pressure: Always relieve pressure from the fuel system before working on it.
* Repair Manual: A 1989 Corvette repair manual is essential. It will provide specific instructions and diagrams for your model.
* Professional Help: If you are not comfortable performing this repair, it's best to take your Corvette to a qualified mechanic. This is a job with potential for serious injury if not done correctly.
This is a complex procedure. Again, refer to a repair manual specific to your 1989 Corvette for accurate and detailed instructions. Improper installation can lead to serious problems, including vehicle damage and fire. If you are unsure about any step, seek professional assistance.
